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6 meter 1/2 Wave Dipole. ALL STAINLESS With 1:1 Current Balun, TRUE 2.15Dbi 1kW

$ 24.81

Availability: 99 in stock
  • Features: Multi-Directional
  • Compatible Product: Base Station Radio
  • Model: UJM-6-1KW
  • Return shipping will be paid by: Buyer
  • Type: Antenna
  • Condition: New
  • Brand: Nelson Antennas
  • Band: AM
  • All returns accepted: Returns Accepted
  • Item must be returned within: 30 Days
  • Compatible Brand: Universal
  • Directivity: Omni-Directional
  • Restocking Fee: No
  • Refund will be given as: Money Back

    Description

    Designed by Nelson Antennas (KD8UJM)
    For maximum DX'ing on AM or SSB
    6 Meter "
    M
    a
    g
    i
    c
    Band"
    Get that 6 meter antenna up now for those magical 6 meter openings! 6 meters isn't always open but when it does open up it can be a blast!
    First, please look at all pictures for helpful details and please read my entire listing.
    The Half wave dipole has been considered one of the best all time antennas for both local and long distance DX contacts.
    This 1/2 Wave dipole includes a built in custom built 1:1 current balun that isn't just a wide banded universal multi band balun but optimized for the 6 meter band frequency area. The balun will handle 1000 watts pep without issue.
    All Stainless steel hardware for many years of trouble free service. Stress reliefs on all stress points as you can see. Includes UV protected nylon dog-bone insulators. Standard but very high quality SO-239 connector to mate with your coax PL-259 coax connectors. The enclosure has a very small upward flowing air inlet hole with a tiny "weep hole" at the bottom ensuring condensation with temperature changes can always escape the system. Elements made with Marine 18 AWG tinned copper insulated wire can handle 2kW of power but also provide a nice thin/small footprint.
    Depending on my stock, dog-bone insulators will either be white or gray.
    This antenna will come pre-tuned towards the lower (most used) part of the band. If you would like it tuned for more of the center of the band you may do so easily. Every 1/2" taken off each side will raise the center tuned frequency by approx 0.5MHz.
    Power Handling                                              1kW PEP
    Antenna Length                                              Approx 106" insulator end to end
    Antenna True Gain                                         2.15dBi
    Effective Radiated Power @2.15dBi gain    12 watts in = 19.7W EIRP
    Antenna Radiation Pattern                            Omnidirectional
    Element Material                                            18 AWG Marine tinned copper insulated wire
    Bandwidth  2.0:1 thru 2.0:1 is 3MHz absolute MINIMUM!
    Typical best SWR as shipped will be center tuned for 50.8MHz at optimal height!
    If you would like the antenna center tuned higher in the band just send me a eBay message IMMEDIATELY after purchase but we recommend you take it as normally shipped and make any adjustments where it will be installed.
    Typical SWR when requested higher center tune will be best at 51.75MHz at optimal operating height above ground
    How to deploy this antenna for maximum gain and desired SWR:
    Remember, a dipoles feed point impedance changes with height above ground! For best match and performance please read the following;
    To achieve highest gain and Best operation 1/2 wave dipole should be mounted 1/2 wavelength minimum high. We recommend this antenna to be between 12 and 15 feet high for best SWR and gain. This will give the rf the best low angle radiation for long distance DX. It will work fine at lower heights but for highest gain and lowest SWR's 12-15 feet is best.
    The importance of a
    proper
    1:1 current balun on a dipole;
    A resonant half-wave dipole is typically fed with coaxial feedline and tuned to a specific area of a band. Its planned use is generally within that band. A popular misconception is because the dipole is resonant, or because the dipole feedline is small in diameter, a balun is not helpful. Current baluns isolate or add impedance to unwanted common-mode current paths, reducing or controlling common-mode current. Current baluns are the balun of choice in all but very specialized situations, because they work better than voltage baluns in most real-world systems. Basically, they ensure that the currents on each side of the dipole (balanced antenna) are perfectly even. This also stops unwanted currents from flowing on the outside of the coax (all coax is unbalanced line) and traveling back to your receiver.
    This ensures a "clean" system without unwanted RFI issues.
    Simple to deploy
    The center of the antenna has a stainless eye-bolt at the top for it to hang from a support.  Pull each leg of the dipole straight out flat and secure by tying your cord/rope to the dog-bone insulators. If securing the antenna to objects like trees that will move in the wind be sure to use a cord material with some stretch. You can also leave just a bit of slack in the system.
    As with ALL antennas, you should install them in an area as open as possible. Obstacles close to the antenna will have an affect on both the tune of the antenna and radiation pattern. You cannot mount this or any antenna up against walls and such.
    Any questions? Please feel free to ask. I am adding many more antennas and other antenna related products to my eBay store so please check them out from time to time.